[alexhutcheson]

If you're just learning, I'd highly recommend that you stick to the toolchains supported by the manufacturer of the chip you're using. The various open source toolchains are very cool, but they have sharp edges and limitations that won't be obvious to a beginner. Many of them also focus on high-level synthesis, which isn't good for beginners, because you really need to learn the ins and outs of digital logic to be able to debug the output of a high-level synthesis tool.